People who accept review requests before meeting up are more likely to show up on time and follow through with an awesome trade. Accepting a review request before meeting up is a sign of commitment toward making your trade happen. Best practice with leaving a review would be to do so after you have completed the trade and all items inspected. If there is an issue with the trade, please reach out to the user to try to come to a resolution before leaving a negative review. More often than not, most users are happy to rectify any issues that may have occurred.
Should you feel a negative review is necessary, especially in the cases of ghosted trades if you have not been able to resolve this with the other Bun, please remain factual and polite in the review. Reviews that are not truthful or contain inflammatory language will result in the review text being removed.